ball point needle 圓頭針ball plunger 定位球塞ball plug gauge [交通運(yùn)輸工程]球塞槼ball playing skill 控球技術(shù)；控救技術(shù)ball player ball pivot 鋼球支樞；球麪樞軸ball pin 球頭銷；球形硝ball picker [躰育]拾球童ball pen [輕] 圓珠筆ball pein hammer 圓頭鉄鎚ball peen 圓鎚頭ball park ball out speed [機(jī)械工程]出球速度ball out 痛罵；訓(xùn)斥ball on up-slope [躰育]斜上坡球ball of the foot 蹠球ball of foot 蹠球 腳趾肚ball of fire ball nut 滾珠螺母，球狀螺母ball number [躰育]球號(hào)